The manufacturers in Oklahoma are primarily large firms, many founded in the mid-20th century, with a strong presence in industrial machinery and oil and gas. T.D. Williamson provides solutions for pipeline operators, while Zeeco, Inc. specializes in combustion and environmental solutions. AAON, Inc. and Nortek Air Solutions, LLC are significant players in HVAC manufacturing. Ditch Witch manufactures specialized equipment. W&W|AFCO Steel is a leading steel fabrication company.
A notable concentration of these companies is headquartered in Tulsa and Oklahoma City. Beyond the industrial sector, Lopez Dorada is a family-owned company providing high-quality protein products, and CFS Brands supplies the foodservice, healthcare, and hygiene industries.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
T.D. Williamsontdwilliamson.com
The company provides innovative solutions for pipeline operators worldwide to maximize uptime, improve throughput, minimize risk, and address regulatory climate challenges |
1,872 | |||
| 2 |
Zeeco, Inc.zeeco.com
A global leader in combustion and environmental solutions for various industries, specializing in ultra-low emission burners, flaring systems, and waste incineration |
1,812 | |||
| 3 |
AAON, Inc.aaon.com
Innovative company advancing the HVAC industry with customizable solutions for commercial and industrial spaces, focusing on design, manufacturing, and testing |
1,654 | |||
| 4 |
Nortek Air Solutions, LLCnortekair.com
Leading HVAC manufacturer in North America providing custom solutions for industrial air handling, cleanroom systems, and mission critical technology with extensive experience and facilities |
1,305 | |||
| 5 |
Ditch Witchditchwitch.com
The company manufactures equipment with signature orange color, rooted in pioneer spirit, hard work ethic, and pride of ownership They prioritize customer satisfaction |
1,197 | |||
| 6 |
Chickasaw Nation Industries, Inc.chickasaw.com
Operating subsidiaries for federal government and commercial clients, offering solutions in various sectors, supporting Chickasaw Nation economic development. |
1,095 | |||
| 7 |
John Zinkjohnzink.com
Global leader in environmental solutions for various industries, specializing in engineered vapor and combustion systems with Smart Combustion™ technology for optimized performance and efficiency |
869 | |||
| 8 |
W&W|AFCO Steelwwafcosteel.com
A leading steel fabrication company with decades of experience, offering turnkey design, fabrication, and erection solutions for projects of any size or complexity |
800 | |||
| 9 |
ATCatcreman.com
A global leader in remanufacturing solutions for powertrain and drivetrain products for vehicles of all types, offering engineering services worldwide |
727 | |||
| 10 |
Lopez Doradalopezdorada.com
A family-owned company passionate about providing high-quality protein products globally, focusing on beef, pork, and chicken with a commitment to employee well-being |
709 | |||
| 11 |
Webco Industrieswebcotube.com
A leading manufacturer and distributor of steel tubing, founded in 1969, with locations in Oklahoma, Texas, and Pennsylvania Specializing in various types of steel tubing |
699 | |||
| 12 |
Dolese Bros. Co.dolese.com
An employee-owned company based in Oklahoma City with operations throughout Oklahoma, offering top aggregate and concrete products for various construction projects |
545 | |||
| 13 |
Kimray, Inckimray.com
A manufacturer based in Oklahoma City creating oil and gas control equipment since 1948 Specializing in temperature, level, flow, and pressure control solutions |
532 | |||
| 14 |
Nortek Data Center Coolingnortekdatacenter.com
Provide adaptable, efficient data center cooling solutions that maximize system performance, minimize equipment footprint, and support sustainability goals. |
512 | |||
| 15 |
CFS Brandscfsbrands.com
A leading supplier to FoodService, Healthcare, and Hygiene industries, focused on innovation, quality service, and comprehensive shopping experiences to increase success and reduce costs |
491 | |||
| 16 |
The Bama Companies, Incbama.com
Supplier of hand-held pies, biscuits, buns, pie shells, and pizza crusts to major restaurant chains worldwide with custom oven-ready products. |
486 | |||
| 17 |
AMETEK MROametekmro.com
Global provider of third-party MRO services for commercial, regional, and general aviation Specializing in repair and overhaul services with various approvals |
481 | |||
| 18 |
Summit ESPsummitesp.com
A service provider offering integrated Electric Submersible Pumping systems to optimize production, reduce costs, and increase profitability in the artificial lift industry |
448 | |||
| 19 |
BS&B Safety Systemsbsbsystems.com
Global leader in non-reclosing pressure relief devices, setting industry standards with innovative products and services to protect personnel and equipment worldwide |
442 | |||
| 20 |
CUST-O-FABcustofab.com
A provider of high-quality heat transfer equipment fabrication and on-site services for industries including oil & gas, power generation, and chemicals |
413 | |||
| 21 |
Ameristar Perimeter Security USA Inc., an ASSA ABLOY Group brandameristarperimeter.com
A global leader in ornamental fencing and perimeter security solutions, offering high-quality products like anti-ram barriers, bollards, and enclosures |
378 | |||
| 22 |
LSB Industries, Inc.lsbindustries.com
LSB Industries produces low and no carbon products for industries like agriculture, industrial, mining, and energy markets, focusing on excellence and customer experience |
354 | |||
| 23 |
McElroy Manufacturing, Inc.mcelroy.com
Established in 1954, this company specializes in engineering and manufacturing fusion equipment for thermoplastic pipes, leading the industry with technological advancements |
335 | |||
| 24 |
MIRATECHmiratechcorp.com
Industry leader providing emission and acoustical solutions for engines, helping customers meet regulatory requirements while reducing emissions complexity Engineered for performance and quality |
325 | |||
| 25 |
M-D Building Productsmdteam.com
A company established in 1920, specializing in developing and manufacturing quality products for building, decorating, and weatherproofing homes in the US |
277 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
Enovation Controlsenovationcontrols.com
Innovator of electronic controls and displays, providing customized solutions for engines, engine-driven equipment, and specialty vehicles across diverse markets globally. |
265 | |||
| 27 |
Polyvisionpolyvision.com
Global manufacturer of CeramicSteel surfaces for education, commercial collaboration, architecture, and infrastructure applications Produces chalkboards, markerboards, panels, and cladding |
251 | |||
| 28 |
Accurus Aerospace Corporationaccurusaero.com
Leading Tier II supplier of machined parts, kits, assemblies, and processing services to global aerospace and defense industry Focused on high-value aircraft platforms |
245 | |||
| 29 |
Red Devil, Inc.reddevil.com
Manufacturing tools, chemical products and accessories for maintenance and improvement industry since 1872, with sales locations worldwide and headquarters in Tulsa, Oklahoma |
222 | |||
| 30 | 
Wolverine Tube, Inc.wlv.com
A global leader in innovative heat transfer solutions, specializing in thermal management products for various industries worldwide with a focus on energy efficiency and tailored customer solutions |
187 | |||
| 31 |
Mercer Valve Co., Inc.mercervalve.net
A company focused on delivering high-quality pressure relief valves with patented technology, competitive pricing, timely delivery, and professional services |
186 | |||
| 32 |
Downingdowningusa.com
An American oilfield solutions provider specializing in pressure-control technologies, offering wellhead systems and frac equipment to enhance safety and efficiency in the industry |
181 | |||
| 33 |
Field Aerospacefieldaero.com
Field Aerospace in Oklahoma City offers aircraft modifications, maintenance, project management, and integration services for special mission aircraft and avionics systems |
143 | |||
| 34 |
Da/Pro Rubber, Inc.daprorubber.com
Specializing in molding high-quality components since 1960, providing expert assistance in rubber, plastic, and TPE molding with ISO-certified facilities |
124 | |||
| 35 |
RL Hudson & Companyrlhudson.com
Specializing in problem-solving and cost-saving solutions for manufacturing companies, providing custom molded plastic, rubber components, hoses, sealing devices, and assemblies with innovative design |
97 | |||
| 36 |
MidCentralmidcentralenergy.com
An asset performance management company in the energy industry, emphasizing customer service, data transparency, technology, and innovation to maximize returns and optimize resources |
88 | |||
| 37 |
Aberdeen Dynamicsaberdeendynamics.com
Aberdeen Dynamics is a full-service provider of motion and control solutions, specializing in custom hydraulic systems for various industries and offering industry-leading technology and service |
77 | |||
| 38 |
Seal Companysealcompany.com
This company offers engineered sealing solutions globally, specializing in O-rings, seals, gaskets, and packings for various industries including defense, oilfield, and industrial sectors |
60 | |||
| 39 |
Lee C. Moore, A Woolslayer Companylcm-wci.com
The company provides drilling equipment solutions and engineering services to the petroleum industry worldwide, with experienced employees and state-of-the-art facilities |
55 | |||
| 40 |
Hill Manufacturing & Fabricationhill-manufacturing.com
Specializing in precision parts manufacturing with tight tolerances using multi-axis technology, prioritizing material quality, on-time delivery, and exceptional customer service |
51 | |||
| 41 |
Walvoil Fluid Power USAwalvoilusa.com
Global manufacturer of hydraulic valves, pumps, motors, and mechatronic systems for various industries, providing integrated hydraulic and electronic solutions for major OEMs worldwide |
43 | |||
| 42 |
CMI ROADBUILDING INC.cmi-roadbuilding.com
A heavy equipment manufacturing company specializing in road building, construction, and waste management Offers products for compaction, paving, and recycling |
33 | |||
| 43 |
TSI Flow Productstsiflowproducts.com
A leading provider of innovative flow control equipment, known for exceptional customer service, with locations across the US and Canada |
23 | |||
| 44 |
Liberty Partners, Inc.liberty-partners.com
Innovative aerospace company providing unique products and services, establishing leadership through problem-solving solutions for customers in the industry |
22 | |||
| 45 |
SAVAGE EQUIPMENT INCsavageequipment.com
A company based in Oklahoma, USA specializing in equipment manufacturing and distribution located at 1020 N Industrial Rd, Madill |
19 | |||
| 46 |
Progressive Stamping & Fabricationpsi-okc.com
A manufacturing company in Oklahoma with over 20 years of experience specializing in metal parts production through upgraded equipment and employee training |
17 | |||
| 47 |
SMD (Surface Mount Depot)smdokc.com
A leading contract electronics manufacturer in the Southwest, offering a wide range of services for various industries with high-quality and reliable products |
15 | |||
| 48 |
Seahawk Manufacturingseahawkmfg.com
A family-owned custom molded rubber manufacturer in Tulsa, Oklahoma, specializing in material selection, tooling construction, process development, and customer service worldwide |
9 | |||
| 49 |
ViNtrol, Inc.vintrol.com
Manufacturer of flow control products for the oil and gas industry, offering a comprehensive range of valve solutions with customized engineering options |
9 | |||
| 50 |
IronWolf Manufacturing LLCironwolf.com
Manufacturing company based in Oklahoma specializing in machinery production |
8 | |||
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
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